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libiscsi/include/scsi-lowlevel.h
Ronnie Sahlberg 4de36794f2 Make scsi_allocated_memory private to scsi-lowlevel and remove the ptr pointer 
Change the list-head structure for in-task scsi memory allocations to
be private to scsi-lowlevel since is is never accessed from anyehwere else and
it is private to this function.
Remove the pointer to the user data in the list head and replace it with a zero length buffer at the end of the header.

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
2012-11-11 08:07:26 -08:00

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/*
Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __scsi_lowlevel_h__
#define __scsi_lowlevel_h__
#ifdef __cplusplus
extern "C" {
#endif
#define SCSI_CDB_MAX_SIZE 16
enum scsi_opcode {
SCSI_OPCODE_TESTUNITREADY = 0x00,
SCSI_OPCODE_READ6 = 0x08,
SCSI_OPCODE_INQUIRY = 0x12,
SCSI_OPCODE_RESERVE6 = 0x16,
SCSI_OPCODE_RELEASE6 = 0x17,
SCSI_OPCODE_MODESENSE6 = 0x1a,
SCSI_OPCODE_STARTSTOPUNIT = 0x1b,
SCSI_OPCODE_PREVENTALLOW = 0x1e,
SCSI_OPCODE_READCAPACITY10 = 0x25,
SCSI_OPCODE_READ10 = 0x28,
SCSI_OPCODE_WRITE10 = 0x2A,
SCSI_OPCODE_WRITE_VERIFY10 = 0x2E,
SCSI_OPCODE_VERIFY10 = 0x2F,
SCSI_OPCODE_PREFETCH10 = 0x34,
SCSI_OPCODE_SYNCHRONIZECACHE10 = 0x35,
SCSI_OPCODE_WRITE_SAME10 = 0x41,
SCSI_OPCODE_UNMAP = 0x42,
SCSI_OPCODE_READTOC = 0x43,
SCSI_OPCODE_READ16 = 0x88,
SCSI_OPCODE_COMPARE_AND_WRITE = 0x89,
SCSI_OPCODE_WRITE16 = 0x8A,
SCSI_OPCODE_ORWRITE = 0x8B,
SCSI_OPCODE_WRITE_VERIFY16 = 0x8E,
SCSI_OPCODE_VERIFY16 = 0x8F,
SCSI_OPCODE_PREFETCH16 = 0x90,
SCSI_OPCODE_SYNCHRONIZECACHE16 = 0x91,
SCSI_OPCODE_WRITE_SAME16 = 0x93,
SCSI_OPCODE_SERVICE_ACTION_IN = 0x9E,
SCSI_OPCODE_REPORTLUNS = 0xA0,
SCSI_OPCODE_MAINTENANCE_IN = 0xA3,
SCSI_OPCODE_READ12 = 0xA8,
SCSI_OPCODE_WRITE12 = 0xAA,
SCSI_OPCODE_WRITE_VERIFY12 = 0xAE,
SCSI_OPCODE_VERIFY12 = 0xAF
};
enum scsi_service_action_in {
SCSI_READCAPACITY16 = 0x10,
SCSI_GET_LBA_STATUS = 0x12
};
enum scsi_maintenance_in {
SCSI_REPORT_SUPPORTED_OP_CODES = 0x0c
};
enum scsi_op_code_reporting_options {
SCSI_REPORT_SUPPORTING_OPS_ALL = 0x00,
SCSI_REPORT_SUPPORTING_OPCODE = 0x01,
SCSI_REPORT_SUPPORTING_SERVICEACTION = 0x02
};
/* sense keys */
enum scsi_sense_key {
SCSI_SENSE_NO_SENSE = 0x00,
SCSI_SENSE_RECOVERED_ERROR = 0x01,
SCSI_SENSE_NOT_READY = 0x02,
SCSI_SENSE_MEDIUM_ERROR = 0x03,
SCSI_SENSE_HARDWARE_ERROR = 0x04,
SCSI_SENSE_ILLEGAL_REQUEST = 0x05,
SCSI_SENSE_UNIT_ATTENTION = 0x06,
SCSI_SENSE_DATA_PROTECTION = 0x07,
SCSI_SENSE_BLANK_CHECK = 0x08,
SCSI_SENSE_VENDOR_SPECIFIC = 0x09,
SCSI_SENSE_COPY_ABORTED = 0x0a,
SCSI_SENSE_COMMAND_ABORTED = 0x0b,
SCSI_SENSE_OBSOLETE_ERROR_CODE = 0x0c,
SCSI_SENSE_OVERFLOW_COMMAND = 0x0d,
SCSI_SENSE_MISCOMPARE = 0x0e
};
EXTERN const char *scsi_sense_key_str(int key);
/* ascq */
#define SCSI_SENSE_ASCQ_MISCOMPARE_DURING_VERIFY 0x1d00
#define SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE 0x2000
#define SCSI_SENSE_ASCQ_LBA_OUT_OF_RANGE 0x2100
#define SCSI_SENSE_ASCQ_INVALID_FIELD_IN_CDB 0x2400
#define SCSI_SENSE_ASCQ_LOGICAL_UNIT_NOT_SUPPORTED 0x2500
#define SCSI_SENSE_ASCQ_WRITE_PROTECTED 0x2700
#define SCSI_SENSE_ASCQ_BUS_RESET 0x2900
#define SCSI_SENSE_ASCQ_MEDIUM_NOT_PRESENT 0x3a00
#define SCSI_SENSE_ASCQ_MEDIUM_NOT_PRESENT_TRAY_CLOSED 0x3a01
#define SCSI_SENSE_ASCQ_MEDIUM_NOT_PRESENT_TRAY_OPEN 0x3a02
#define SCSI_SENSE_ASCQ_INTERNAL_TARGET_FAILURE 0x4400
#define SCSI_SENSE_ASCQ_MEDIUM_LOAD_OR_EJECT_FAILED 0x5300
#define SCSI_SENSE_ASCQ_MEDIUM_REMOVAL_PREVENTED 0x5302
EXTERN const char *scsi_sense_ascq_str(int ascq);
enum scsi_xfer_dir {
SCSI_XFER_NONE = 0,
SCSI_XFER_READ = 1,
SCSI_XFER_WRITE = 2
};
/*
* READTOC
*/
EXTERN struct scsi_task *scsi_cdb_readtoc(int msf, int format, int track_session, uint16_t alloc_len);
enum scsi_readtoc_fmt {
SCSI_READ_TOC = 0,
SCSI_READ_SESSION_INFO = 1,
SCSI_READ_FULL_TOC = 2,
SCSI_READ_PMA = 3,
SCSI_READ_ATIP = 4
};
struct scsi_readtoc_desc{
union {
struct scsi_toc_desc {
int adr;
int control;
int track;
uint32_t lba;
} toc;
struct scsi_session_desc {
int adr;
int control;
int first_in_last;
uint32_t lba;
} ses;
struct scsi_fulltoc_desc {
int session;
int adr;
int control;
int tno;
int point;
int min;
int sec;
int frame;
int zero;
int pmin;
int psec;
int pframe;
} full;
} desc;
};
struct scsi_readtoc_list {
int num;
int first;
int last;
struct scsi_readtoc_desc desc[0];
};
struct scsi_reportluns_params {
int report_type;
};
struct scsi_read6_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_read10_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_read12_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_read16_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_write10_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_write12_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_write16_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_startstopunit_params {
int immed;
int pcm;
int pc;
int no_flush;
int loej;
int start;
};
struct scsi_preventallow_params {
int prevent;
};
struct scsi_orwrite_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_compareandwrite_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_writeverify10_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_writeverify12_params {
uint32_t lba;
uint32_t num_blocks;
};
struct scsi_writeverify16_params {
uint64_t lba;
uint32_t num_blocks;
};
struct scsi_verify10_params {
uint32_t lba;
uint32_t num_blocks;
int vprotect;
int dpo;
int bytchk;
};
struct scsi_verify12_params {
uint32_t lba;
uint32_t num_blocks;
int vprotect;
int dpo;
int bytchk;
};
struct scsi_verify16_params {
uint64_t lba;
uint32_t num_blocks;
int vprotect;
int dpo;
int bytchk;
};
struct scsi_readcapacity10_params {
int lba;
int pmi;
};
struct scsi_inquiry_params {
int evpd;
int page_code;
};
struct scsi_modesense6_params {
int dbd;
int pc;
int page_code;
int sub_page_code;
};
struct scsi_serviceactionin_params {
enum scsi_service_action_in sa;
};
struct scsi_readtoc_params {
int msf;
int format;
int track_session;
};
struct scsi_report_supported_params {
int return_timeouts;
};
struct scsi_maintenancein_params {
enum scsi_maintenance_in sa;
union {
struct scsi_report_supported_params reportsupported;
} params;
};
struct scsi_sense {
unsigned char error_type;
enum scsi_sense_key key;
int ascq;
};
struct scsi_data {
int size;
unsigned char *data;
};
enum scsi_residual {
SCSI_RESIDUAL_NO_RESIDUAL = 0,
SCSI_RESIDUAL_UNDERFLOW,
SCSI_RESIDUAL_OVERFLOW
};
struct scsi_task {
int status;
int cdb_size;
int xfer_dir;
int expxferlen;
unsigned char cdb[SCSI_CDB_MAX_SIZE];
union {
struct scsi_read6_params read6;
struct scsi_read10_params read10;
struct scsi_read12_params read12;
struct scsi_read16_params read16;
struct scsi_write10_params write10;
struct scsi_write12_params write12;
struct scsi_write16_params write16;
struct scsi_startstopunit_params startstopunit;
struct scsi_preventallow_params preventallow;
struct scsi_orwrite_params orwrite;
struct scsi_compareandwrite_params compareandwrite;
struct scsi_writeverify10_params writeverify10;
struct scsi_writeverify12_params writeverify12;
struct scsi_writeverify16_params writeverify16;
struct scsi_verify10_params verify10;
struct scsi_verify12_params verify12;
struct scsi_verify16_params verify16;
struct scsi_readcapacity10_params readcapacity10;
struct scsi_reportluns_params reportluns;
struct scsi_inquiry_params inquiry;
struct scsi_modesense6_params modesense6;
struct scsi_serviceactionin_params serviceactionin;
struct scsi_readtoc_params readtoc;
struct scsi_maintenancein_params maintenancein;
} params;
enum scsi_residual residual_status;
int residual;
struct scsi_sense sense;
struct scsi_data datain;
struct scsi_allocated_memory *mem;
void *ptr;
uint32_t itt;
uint32_t cmdsn;
uint32_t lun;
struct scsi_data_buffer *in_buffers;
};
/* This function will free a scsi task structure.
You may NOT cancel a task until the callback has been invoked
and the command has completed on the iscsi layer.
*/
EXTERN void scsi_free_scsi_task(struct scsi_task *task);
EXTERN void scsi_set_task_private_ptr(struct scsi_task *task, void *ptr);
EXTERN void *scsi_get_task_private_ptr(struct scsi_task *task);
/*
* TESTUNITREADY
*/
EXTERN struct scsi_task *scsi_cdb_testunitready(void);
/*
* REPORTLUNS
*/
#define SCSI_REPORTLUNS_REPORT_ALL_LUNS 0x00
#define SCSI_REPORTLUNS_REPORT_WELL_KNOWN_ONLY 0x01
#define SCSI_REPORTLUNS_REPORT_AVAILABLE_LUNS_ONLY 0x02
struct scsi_reportluns_list {
uint32_t num;
uint16_t luns[0];
};
EXTERN struct scsi_task *scsi_reportluns_cdb(int report_type, int alloc_len);
/*
* RESERVE6
*/
EXTERN struct scsi_task *scsi_cdb_reserve6(void);
/*
* RELEASE6
*/
EXTERN struct scsi_task *scsi_cdb_release6(void);
/*
* READCAPACITY10
*/
struct scsi_readcapacity10 {
uint32_t lba;
uint32_t block_size;
};
EXTERN struct scsi_task *scsi_cdb_readcapacity10(int lba, int pmi);
/*
* INQUIRY
*/
enum scsi_inquiry_peripheral_qualifier {
SCSI_INQUIRY_PERIPHERAL_QUALIFIER_CONNECTED = 0x00,
SCSI_INQUIRY_PERIPHERAL_QUALIFIER_DISCONNECTED = 0x01,
SCSI_INQUIRY_PERIPHERAL_QUALIFIER_NOT_SUPPORTED = 0x03
};
const char *scsi_devqualifier_to_str(
enum scsi_inquiry_peripheral_qualifier qualifier);
enum scsi_inquiry_peripheral_device_type {
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_DIRECT_ACCESS = 0x00,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_SEQUENTIAL_ACCESS = 0x01,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_PRINTER = 0x02,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_PROCESSOR = 0x03,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_WRITE_ONCE = 0x04,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_MMC = 0x05,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_SCANNER = 0x06,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_OPTICAL_MEMORY = 0x07,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_MEDIA_CHANGER = 0x08,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_COMMUNICATIONS = 0x09,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_STORAGE_ARRAY_CONTROLLER = 0x0c,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_ENCLOSURE_SERVICES = 0x0d,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_SIMPLIFIED_DIRECT_ACCESS = 0x0e,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_OPTICAL_CARD_READER = 0x0f,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_BRIDGE_CONTROLLER = 0x10,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_OSD = 0x11,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_AUTOMATION = 0x12,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_SEQURITY_MANAGER = 0x13,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_WELL_KNOWN_LUN = 0x1e,
SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_UNKNOWN = 0x1f
};
EXTERN const char *scsi_devtype_to_str(enum scsi_inquiry_peripheral_device_type type);
enum scsi_version {
SCSI_VERSION_SPC = 0x03,
SCSI_VERSION_SPC2 = 0x04,
SCSI_VERSION_SPC3 = 0x05
};
EXTERN const char *scsi_version_to_str(enum scsi_version version);
enum scsi_inquiry_tpgs {
SCSI_INQUIRY_TPGS_NO_SUPPORT = 0x00,
SCSI_INQUIRY_TPGS_IMPLICIT = 0x01,
SCSI_INQUIRY_TPGS_EXPLICIT = 0x02,
SCSI_INQUIRY_TPGS_IMPLICIT_AND_EXPLICIT = 0x03
};
/* fix typos, leave old names for backward compatibility */
#define periperal_qualifier qualifier
#define periperal_device_type device_type
struct scsi_inquiry_standard {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
int rmb;
int version;
int normaca;
int hisup;
int response_data_format;
int additional_length;
int sccs;
int acc;
int tpgs;
int threepc;
int protect;
int encserv;
int multip;
int addr16;
int wbus16;
int sync;
int cmdque;
int clocking;
int qas;
int ius;
char vendor_identification[8+1];
char product_identification[16+1];
char product_revision_level[4+1];
};
enum scsi_inquiry_pagecode {
SCSI_INQUIRY_PAGECODE_SUPPORTED_VPD_PAGES = 0x00,
SCSI_INQUIRY_PAGECODE_UNIT_SERIAL_NUMBER = 0x80,
SCSI_INQUIRY_PAGECODE_DEVICE_IDENTIFICATION = 0x83,
SCSI_INQUIRY_PAGECODE_BLOCK_LIMITS = 0xB0,
SCSI_INQUIRY_PAGECODE_BLOCK_DEVICE_CHARACTERISTICS = 0xB1,
SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING = 0xB2
};
EXTERN const char *scsi_inquiry_pagecode_to_str(int pagecode);
struct scsi_inquiry_supported_pages {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
enum scsi_inquiry_pagecode pagecode;
int num_pages;
unsigned char *pages;
};
struct scsi_inquiry_block_limits {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
enum scsi_inquiry_pagecode pagecode;
int wsnz; /* write same no zero */
uint8_t max_cmp; /* maximum_compare_and_write_length */
uint16_t opt_gran; /* optimal_transfer_length_granularity */
uint32_t max_xfer_len; /* maximum_transfer_length */
uint32_t opt_xfer_len; /* optimal_transfer_length */
uint32_t max_prefetch; /* maximum_prefetched_xdread_xdwrite_transfer_length */
uint32_t max_unmap; /* maximum_unmap_lba_count */
uint32_t max_unmap_bdc; /* maximum_unmap_block_descriptor_count */
uint32_t opt_unmap_gran; /* optimal_unmap_granularity */
int ugavalid;
uint32_t unmap_gran_align; /* unmap_granularity_alignment */
uint64_t max_ws_len; /* maximum_write_same_length */
};
struct scsi_inquiry_block_device_characteristics {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
enum scsi_inquiry_pagecode pagecode;
int medium_rotation_rate;
};
enum scsi_inquiry_provisioning_type {
PROVISIONING_TYPE_NONE = 0,
PROVISIONING_TYPE_RESOURCE = 1,
PROVISIONING_TYPE_THIN = 2
};
struct scsi_inquiry_logical_block_provisioning {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
enum scsi_inquiry_pagecode pagecode;
int threshold_exponent;
int lbpu;
int lbpws;
int lbpws10;
int lbprz;
int anc_sup;
int dp;
enum scsi_inquiry_provisioning_type provisioning_type;
};
EXTERN struct scsi_task *scsi_cdb_inquiry(int evpd, int page_code, int alloc_len);
struct scsi_inquiry_unit_serial_number {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
enum scsi_inquiry_pagecode pagecode;
char *usn;
};
enum scsi_protocol_identifier {
SCSI_PROTOCOL_IDENTIFIER_FIBRE_CHANNEL = 0x00,
SCSI_PROTOCOL_IDENTIFIER_PARALLEL_SCSI = 0x01,
SCSI_PROTOCOL_IDENTIFIER_SSA = 0x02,
SCSI_PROTOCOL_IDENTIFIER_IEEE_1394 = 0x03,
SCSI_PROTOCOL_IDENTIFIER_RDMA = 0x04,
SCSI_PROTOCOL_IDENTIFIER_ISCSI = 0x05,
SCSI_PROTOCOL_IDENTIFIER_SAS = 0x06,
SCSI_PROTOCOL_IDENTIFIER_ADT = 0x07,
SCSI_PROTOCOL_IDENTIFIER_ATA = 0x08
};
EXTERN const char *scsi_protocol_identifier_to_str(int identifier);
enum scsi_codeset {
SCSI_CODESET_BINARY = 0x01,
SCSI_CODESET_ASCII = 0x02,
SCSI_CODESET_UTF8 = 0x03
};
EXTERN const char *scsi_codeset_to_str(int codeset);
enum scsi_association {
SCSI_ASSOCIATION_LOGICAL_UNIT = 0x00,
SCSI_ASSOCIATION_TARGET_PORT = 0x01,
SCSI_ASSOCIATION_TARGET_DEVICE = 0x02
};
EXTERN const char *scsi_association_to_str(int association);
enum scsi_designator_type {
SCSI_DESIGNATOR_TYPE_VENDOR_SPECIFIC = 0x00,
SCSI_DESIGNATOR_TYPE_T10_VENDORT_ID = 0x01,
SCSI_DESIGNATOR_TYPE_EUI_64 = 0x02,
SCSI_DESIGNATOR_TYPE_NAA = 0x03,
SCSI_DESIGNATOR_TYPE_RELATIVE_TARGET_PORT = 0x04,
SCSI_DESIGNATOR_TYPE_TARGET_PORT_GROUP = 0x05,
SCSI_DESIGNATOR_TYPE_LOGICAL_UNIT_GROUP = 0x06,
SCSI_DESIGNATOR_TYPE_MD5_LOGICAL_UNIT_IDENTIFIER = 0x07,
SCSI_DESIGNATOR_TYPE_SCSI_NAME_STRING = 0x08
};
EXTERN const char *scsi_designator_type_to_str(int association);
struct scsi_inquiry_device_designator {
struct scsi_inquiry_device_designator *next;
enum scsi_protocol_identifier protocol_identifier;
enum scsi_codeset code_set;
int piv;
enum scsi_association association;
enum scsi_designator_type designator_type;
int designator_length;
char *designator;
};
struct scsi_inquiry_device_identification {
enum scsi_inquiry_peripheral_qualifier qualifier;
enum scsi_inquiry_peripheral_device_type device_type;
enum scsi_inquiry_pagecode pagecode;
struct scsi_inquiry_device_designator *designators;
};
/*
* MODESENSE6
*/
enum scsi_modesense_page_control {
SCSI_MODESENSE_PC_CURRENT = 0x00,
SCSI_MODESENSE_PC_CHANGEABLE = 0x01,
SCSI_MODESENSE_PC_DEFAULT = 0x02,
SCSI_MODESENSE_PC_SAVED = 0x03
};
struct scsi_mode_page_caching {
int ic;
int abpf;
int cap;
int disc;
int size;
int wce;
int mf;
int rcd;
int demand_read_retention_priority;
int write_retention_priority;
int disable_prefetch_transfer_length;
int minimum_prefetch;
int maximum_prefetch;
int maximum_prefetch_ceiling;
int fsw;
int lbcss;
int dra;
int nv_dis;
int number_of_cache_segments;
int cache_segment_size;
};
struct scsi_mode_page_disconnect_reconnect {
int buffer_full_ratio;
int buffer_empty_ratio;
int bus_inactivity_limit;
int disconnect_time_limit;
int connect_time_limit;
int maximum_burst_size;
int emdp;
int fair_arbitration;
int dimm;
int dtdc;
int first_burst_size;
};
struct scsi_mode_page_informational_exceptions_control {
int perf;
int ebf;
int ewasc;
int dexcpt;
int test;
int ebackerr;
int logerr;
int mrie;
int interval_timer;
int report_count;
};
enum scsi_modesense_page_code {
SCSI_MODESENSE_PAGECODE_READ_WRITE_ERROR_RECOVERY = 0x01,
SCSI_MODESENSE_PAGECODE_DISCONNECT_RECONNECT = 0x02,
SCSI_MODESENSE_PAGECODE_VERIFY_ERROR_RECOVERY = 0x07,
SCSI_MODESENSE_PAGECODE_CACHING = 0x08,
SCSI_MODESENSE_PAGECODE_XOR_CONTROL = 0x10,
SCSI_MODESENSE_PAGECODE_INFORMATIONAL_EXCEPTIONS_CONTROL = 0x1c,
SCSI_MODESENSE_PAGECODE_RETURN_ALL_PAGES = 0x3f
};
struct scsi_mode_page {
struct scsi_mode_page *next;
int ps;
int spf;
enum scsi_modesense_page_code page_code;
int subpage_code;
int len;
union {
struct scsi_mode_page_caching caching;
struct scsi_mode_page_disconnect_reconnect disconnect_reconnect;
struct scsi_mode_page_informational_exceptions_control iec;
};
};
struct scsi_mode_sense {
uint8_t mode_data_length;
uint8_t medium_type;
uint8_t device_specific_parameter;
uint8_t block_descriptor_length;
struct scsi_mode_page *pages;
};
EXTERN struct scsi_task *scsi_cdb_modesense6(int dbd,
enum scsi_modesense_page_control pc,
enum scsi_modesense_page_code page_code,
int sub_page_code,
unsigned char alloc_len);
struct scsi_readcapacity16 {
uint64_t returned_lba;
uint32_t block_length;
uint8_t p_type;
uint8_t prot_en;
uint8_t p_i_exp;
uint8_t lbppbe;
uint8_t lbpme;
uint8_t lbprz;
uint16_t lalba;
};
enum scsi_provisioning_type {
SCSI_PROVISIONING_TYPE_MAPPED = 0x00,
SCSI_PROVISIONING_TYPE_DEALLOCATED = 0x01,
SCSI_PROVISIONING_TYPE_ANCHORED = 0x02
};
struct scsi_lba_status_descriptor {
uint64_t lba;
uint32_t num_blocks;
enum scsi_provisioning_type provisioning;
};
struct scsi_get_lba_status {
uint32_t num_descriptors;
struct scsi_lba_status_descriptor *descriptors;
};
struct scsi_op_timeout_descriptor {
uint16_t descriptor_length;
uint8_t reserved;
uint8_t command_specific;
uint32_t nominal_processing_timeout;
uint32_t recommended_timeout;
};
struct scsi_command_descriptor {
uint8_t op_code;
uint8_t reserved1;
uint16_t service_action;
uint8_t reserved2;
uint8_t reserved3;
uint16_t cdb_length;
struct scsi_op_timeout_descriptor to[0];
};
struct scsi_report_supported_op_codes {
uint32_t num_descriptors;
struct scsi_command_descriptor descriptors[0];
};
EXTERN int scsi_datain_getfullsize(struct scsi_task *task);
EXTERN void *scsi_datain_unmarshall(struct scsi_task *task);
EXTERN struct scsi_task *scsi_cdb_read6(uint32_t lba, uint32_t xferlen, int blocksize);
EXTERN struct scsi_task *scsi_cdb_read10(uint32_t lba, uint32_t xferlen, int blocksize, int rdprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_read12(uint32_t lba, uint32_t xferlen, int blocksize, int rdprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_read16(uint64_t lba, uint32_t xferlen, int blocksize, int rdprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_write10(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_write12(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_write16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_startstopunit(int immed, int pcm, int pc, int no_flush, int loej, int start);
EXTERN struct scsi_task *scsi_cdb_preventallow(int prevent);
EXTERN struct scsi_task *scsi_cdb_orwrite(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_compareandwrite(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int fua, int fua_nv, int group_number);
EXTERN struct scsi_task *scsi_cdb_writeverify10(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, int group_number);
EXTERN struct scsi_task *scsi_cdb_writeverify12(uint32_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, int group_number);
EXTERN struct scsi_task *scsi_cdb_writeverify16(uint64_t lba, uint32_t xferlen, int blocksize, int wrprotect, int dpo, int bytchk, int group_number);
EXTERN struct scsi_task *scsi_cdb_verify10(uint32_t lba, uint32_t xferlen, int vprotect, int dpo, int bytchk, int blocksize);
EXTERN struct scsi_task *scsi_cdb_verify12(uint32_t lba, uint32_t xferlen, int vprotect, int dpo, int bytchk, int blocksize);
EXTERN struct scsi_task *scsi_cdb_verify16(uint64_t lba, uint32_t xferlen, int vprotect, int dpo, int bytchk, int blocksize);
EXTERN struct scsi_task *scsi_cdb_synchronizecache10(int lba, int num_blocks,
int syncnv, int immed);
EXTERN struct scsi_task *scsi_cdb_synchronizecache16(uint64_t lba, uint32_t num_blocks,
int syncnv, int immed);
EXTERN struct scsi_task *scsi_cdb_serviceactionin16(enum scsi_service_action_in sa, uint32_t xferlen);
EXTERN struct scsi_task *scsi_cdb_readcapacity16(void);
EXTERN struct scsi_task *scsi_cdb_get_lba_status(uint64_t starting_lba, uint32_t alloc_len);
EXTERN struct scsi_task *scsi_cdb_unmap(int anchor, int group, uint16_t xferlen);
EXTERN struct scsi_task *scsi_cdb_writesame10(int wrprotect, int anchor, int unmap, int pbdata, int lbdata, uint32_t lba, int group, uint16_t num_blocks);
EXTERN struct scsi_task *scsi_cdb_writesame16(int wrprotect, int anchor, int unmap, int pbdata, int lbdata, uint64_t lba, int group, uint32_t num_blocks);
EXTERN struct scsi_task *scsi_cdb_prefetch10(uint32_t lba, int num_blocks, int immed, int group);
EXTERN struct scsi_task *scsi_cdb_prefetch16(uint64_t lba, int num_blocks, int immed, int group);
EXTERN struct scsi_task *scsi_cdb_report_supported_opcodes(int report_timeouts, uint32_t alloc_len);
void *scsi_malloc(struct scsi_task *task, size_t size);
#ifdef __cplusplus
}
#endif
#endif /* __scsi_lowlevel_h__ */
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